MACKE wrote:If my car is charging can I stop it before it is finished. If so how?

If it isn't fast-charging (DCFC), then you just push down the button on the top of the handle - that should automatically stop the charge. At any rate, the standard was set up such that the first pins to disconnect are the status/communication pins (not the pins carrying lots of current) - so as soon as the status pins break contact, charging is automatically stopped.

I can confirm that. While charging the charge connector is always locked, so to stop charging you have to press the unlock button on the remote before you can pull the plug. At a rapid charger there might be an option on the screen or display or panel to stop charging from there, which will release the charge connector.